John David Roy Atchison (August 1954 – October 5, 2007) was an assistant U.S. Attorney in Florida's northern district who gained notoriety when he was arrested for suspicion of soliciting sex from a 5-year-old girl.

On September 16, 2007, Atchison was arrested at the Detroit Metropolitan Airport in a sex crime sting operation undertaken by the FBI and Macomb County. He was charged with "enticement of a minor to engage in sexual activity using the Internet", "aggravated sexual abuse" and "traveling across state lines to have sex with someone under the age of 12".[5] At the time of his arrest, he was carrying presents for his intended victim, including a doll and a pair of earrings. Also in his possession was a jar of petroleum jelly. Following his arrest, he tried to kill himself via hanging with a sheet in his jail cell on September 20, 2007. Atchison had been removed from a suicide watch the previous day after assuring his lawyer and a judge that he would not harm himself. He was not injured in the suicide attempt, which another inmate reported about 4 a.m.[3]

On October 5, 2007, Atchison successfully committed suicide by hanging himself in his prison cell in Milan, Michigan.[4][6]